RESPIRATORY GASES LAB REVIEW QUESTIONS Flashcards
The stimulus to breath comes from?
the stimulus to breath comes from chemoreceptors in the brain, aortic arch, and carotid picking up increased levels of hydrogen ions
List the ways that CO2 can be transported in the blood. Which is the most common?
CO2 can be transported by dissolving, attaching to hemoglobin, or forming a bicarbonate ion; the third is most common
How does exercise affect the partial pressure of blood in the alveolus, active muscle cells, and circulatory vessels?
When someone is hyperventilating, why are they told to do so in cupped hands or in a paper bag?
If someone is passed out, what blood gases exchanges have caused this to occur?
their oxygen levels must have decreased to the “pass out point” 25 - 35mmHg and their carbon dioxide levels must have increased above 50mmHg
